Spindle brake delay

Looking to make the brake be delayed by seconds before activating so the VFD doesnt error out from the instant braking.

According to Halcmd the timedelay function is working perfect. I can see the timedelay.0.in activate and timedelay.elapsed counts to 3 seconds then timedelay.0.out activates. Im having issues tying the timedelay.0.out to the output to activate the air solenoid.


Code so far
Error
Error: pin 'spindle-delayed' not found

I would change
to

New rror code is
Pin 'timedelay.0.out-b' does not exist.

yeah the -b is spurious

Works like a charm after I looked up what the word meant.

Final code. Increase delay to 8 seconds to give the VFD time to ramp down otherwise it kept trying to drive the spindle.

Instead of starting a new thread on this topic, I thought it might be better if I just extended the original one for the benefit of newbies trying to figure stuff out...

Like the original poster, I want a delay before the application of the brake so that the VFD can slow the spindle down (well, actually I'm not sure where to get the brake pads and I don't want to wear them!). My problem is this... I like being able to turn the brake on and off when the spindle is OFF (i.e. not moving). The configuration as shown, however, always has the delay. So...

1. Spindle moving? Introduce the delay
2. Spindle not moving? No delay

The problem here is that I don't think LinuxCNC really has a history of whether or not the spindle turned on since the last application of the brake (some corner cases there but, by and large, this would be an acceptable route). I should state that eventually I plan to have an encoder on my spindle. In that scenario, the decision as to whether or not the spindle was moving as a function of some minimum RPM.

Is any of this possible?

All this is easy in ladder logic.
It's fast enough and has different delay functions.

That sounds fair. I assumed a logic ladder would work, but I've gone down the path of thinking I needed a LL a few times now and have been told that normal HAL components would suffice. I guess I've finally reached something that needs a bit more HP... I'll probably stick with what I've got until I have the console built and the machine running well. Then I'll do tweaks like the brake management.

That is a good decision.
Once you understand how to use the ll implementation it will cost U only a few hours to solve your break.
I do my spindle control with it. Have a fairly mix between lcnc and 7 manual hw switches, as i can do old style tapping with minZ switch.
Have fun.